Fracture resistance of endodontically treated teeth using fiber post with an elastic modulus similar to dentin
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作者:
Jiangkongkho, Pornpot
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Chulalongkorn Univ, Fac Dent, Dept Prosthodont, Bangkok 10330, ThailandChulalongkorn Univ, Fac Dent, Dept Prosthodont, Bangkok 10330, Thailand
Jiangkongkho, Pornpot
[1
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Kamonkhantikul, Krid
[1
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Takahashi, Hidekazu
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Tokyo Med & Dent Univ, Fac Dent, Sch Oral Hlth Care Sci,Bunkyo Ku, Dept Oral Mat Sci & Technol,Course Oral Hlth Engn, Tokyo 1138549, JapanChulalongkorn Univ, Fac Dent, Dept Prosthodont, Bangkok 10330, Thailand
Takahashi, Hidekazu
[2
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Arksornnukit, Mansuang
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Chulalongkorn Univ, Fac Dent, Dept Prosthodont, Bangkok 10330, ThailandChulalongkorn Univ, Fac Dent, Dept Prosthodont, Bangkok 10330, Thailand
Arksornnukit, Mansuang
[1
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机构:
[1] Chulalongkorn Univ, Fac Dent, Dept Prosthodont, Bangkok 10330, Thailand
[2] Tokyo Med & Dent Univ, Fac Dent, Sch Oral Hlth Care Sci,Bunkyo Ku, Dept Oral Mat Sci & Technol,Course Oral Hlth Engn, Tokyo 1138549, Japan
This study investigated the effect of fiber reinforced composite resin (FRC) post lengths, ferrule, and full coverage metal crown on fracture resistance of endodontically treated teeth (ETT) using an experimental FRC post with the similar elastic modulus of dentin (11.5 GPa). ETT was restored according to 1 of 7 combinations of FRC post length (10, 5, 2.5, 0 mm), ferrule (0, 2 mm), and with/without metal crown (n=6). An oblique compressive load was applied on the restored teeth using a universal testing machine. Fracture loads were evaluated with 1-way ANOVA and Tukey HSD test (p<0.05). Compared with tooth preparation only, the fracture loads of ETT restored with composite resin and different post lengths were not significantly different. The group with the ferrule with metal crown showed significantly greater fracture resistance than the others.